Asian shares were mixed on Tuesday while liquidity was thin with Japanese markets shut for a public holiday.
Investors welcomed a mostly higher lead from Wall Street overnight, with the Nasdaq Composite rebounding from an over 1 percent drop amid increased deal activity from Pfizer and General Electric.
But caution set in as the U.S. and Europe slapped more sanctions on Russia on Monday, including visa bans on those close to President Vladimir Putin. 17 companies and 7 individuals in all were U.S. targets in this round of sanctions, which come amid mounting tension over eastern Ukraine. Armed pro-Russian rebels broke up a rally in support of Kiev in the regional capital of Donetsk, injuring several people.